2009 Dodge Challenger - A Challenging Project

The new Dodge Challenger really hit the mark in terms of retro-appearance, Hemi performance, and luxury car amenities, so it's no wonder you see more and more Challengers on the road these days. We loved the look of the '08 SRT models but decided to wait until the '09 R/Ts were available to make our purchase, setting the goal of outperforming an SRT model with our R/T. We've really enjoyed driving our Challenger over the past year or so, and it has responded well to the upgrades we've performed so far. This month we'll update you on what we've done to our Challenger, and would love to hear your feedback about what kind of late-model tech you'd like to see in the future.

After taking delivery of our '09 Challenger R/T, we were impressed by the overall performance, feel, and quality of the vehicle. Daimler/Benz had a big influence on the original LX platform cars, but we weren't sure how much of that refinement would carry over into the Challenger. Though its marginally shorter wheelbase does make ride quality slightly stiffer than Charger, Magnum, or 300 models, the Challenger is comfortable and handles well in stock form, but who wants to leave anything stock? With a mere few thousand miles on the odometer we began installing items like a K & N cold air system and Magnaflow cat-aft exhaust system that wouldn't void our warranty. And while the car responded well to these upgrades, we felt it needed additional power and a better look, so we kept modifying our car.

The biggest difference in the performance of our Challenger came when we installed Procharger's centrifugal supercharger kit on our 5.7 Hemi. This was a fantastic modification, providing an additional 100 rear-wheel horsepower while retaining the car's stock idle characteristics and drivability. Best of all, the supercharger is quiet and fits completely under the hood, so there's no external indication that our car is packing a much better punch than it did in factory form. The Procharger kit for the Challenger and other LX platform cars installs easily in a weekend, and definitely wakes up the already potent Hemi engine. To monitor boost and fuel pressure, we also installed an A-pillar gauge pod from Razor's Edge Motorsports to house our Procharger instruments. So with an extra 100 or so horsepower on tap, we decided to turn our attention to the aesthetics and handling of our late-model project car.

Externally the lines of the new Challenger are great, imitating the E-Body in overall form though the two cars are not dimensionally close whatsoever. Dodge does offer several stripe kits for the R/T model, but ours came without stripes installed. We contacted Graphic Express, who offers several stripes and accent decals for the new Challenger, and installed a '71-style R/T stripe and hood blackout on our silver car. To match the black accents, we had our rear spoiler painted in matching matte black by JD's Paint and Body shop. Eventually, we installed a shaker fiberglass hood and scoop system from Classic Design Concepts for a truly retro look. Though we like the factory stance of the Challenger, we felt the ride height was just a little high for our taste, especially given the high waistline of the car, so we decided to lower the Challenger but wanted to do it correctly.

Summit Racing Equipment already stocks lots of new parts for the LX Mopars, and sent us a lowering and sport suspension kit from Eibach. This kit not only improved the looks of our Challenger by lowering the car about an inch and a half, but also improved the car's handling characteristics dramatically. The Eibach suspension kit comes with new struts with more aggressive valving, and larger diameter sway bars as well. Our friends at Inline Performance Specialists made short work of the suspension upgrades, which required the removal of the entire rear subframe in order to install the rear sway bar. The Eibach suspension upgrades, along with a bumpsteer kit and adjustable sway bar end links from Razor's Edge Motorsports, made a noticeable difference in the handling of our car, without negatively affecting ride quality. The car really turns heads now as well, with the visual upgrades and lower stance.

Next we moved to our car's NAG1 automatic transmission, ordering an upgraded transmission and converter package from Gearstar Performance. We've obviously got plans for a more powerful engine in our car's future and wanted to be sure the transmission was up to the task. Gearstar Performance offers several levels of modification for the NAG1, upgrading our transmission not only to handle the abuse our supercharged stock Hemi will give it, but also readying our car for even more power in case we build a bigger Hemi for our Challenger.

So far, we're happy with our new Dodge and are enjoying the looks and performance of the upgrades we've performed so far. It's great to be able to jump in a new Dodge car and do a burnout with the rear wheels, which until lately wasn't possible. But with our car driving and performing better than it did new, we have to consider what to do next. Should we upgrade the independent rear suspension with new axle shafts and a new differential? What about upgrading our car's disc brakes? We're also considering lightening our car up as well as improving safety and stiffening the suspension with shock tower braces and maybe even a rollbar before building a new engine.

Your Feedback

Here's your chance to offer your opinion about our late-model tech. What types of modifications and upgrades would you like to see in the pages of Mopar Muscle Magazine? Are we building our Challenger the way you would do it or are there things we can do better? In upcoming issues we're planning to upgrade the brakes of our car and show you some tricks that will lighten up your LX Mopar, followed by an engine swap or engine build to make even more power. Let us know how we're doing and share your thoughts about late-model tech by going to www.moparmusclemagazine.com. We'll listen to your opinions, and your input will help us provide a magazine that appeals to the owners of both new and classic Mopars!